Hey guys. I'm getting a medium format camera, trying for a Bronica ETR-Si on eBay if I can find one cheap enough other people have hopefully overlooked, but I found some film for it on Craigslist. They have Kodak film: BW400CN / Portra 400 / 160NC / 400NC / 400UC. It expired in 2005, and $3 a roll. How is 400 film? With my XTi if I have ISO 400 set it's quite grainy, especially at night. And also, are these high end films? Are they worth using? Thanks.